Shoe-bottom-cementing machine



Sept. 16, 1941. w. L. M KENZlE SHOE-BOTTOM -CEMENTING MACHINE Filed May25, 1940 2 Sheets-Sheet 1 P 1941- w. L. M KENZIE 2,255,854

SHOE- BOTTOM-CEMENTING MACHINE Filed may 25, 1940 2 Sheets-Sheet 2Patented Sept. 16, 1941 SHOE-BOTTOM-CEMENTING MACHINE Wilbur L.MacKenzie, Beverly, Mass., assignor to United Shoe MachineryCorporation, Borough of Flemington, N. J., a corporation of New JerseyApplication May 23, 1940, Serial No. 336,753

12 Claims.

This invention relates to improvements in shoe-bottom-cementing machinesand is particularly concerned with an improved machine for coating theoverlasted margin of the upper on the bottom of a shoe, of the typeillustrated in Letters Patent of the United States No. 2,100,341,granted November 30, 1937, upon an application of W. L. MacKenzie.

In the manufacture of shoes in which the outsole is to be attached bymeans of cement, it is customary to apply a stripe of cement upon theoverlasted margin of the upper, as well as upon the margin of theoutsole. The cement applied to a shoe bottom must be positioned with theouter edge of the band directly above the periphery of the insole,sometimes called the feather line. To efiect this result, the operatormust guide the shoe with respect to the applying member, usually anozzle, so as to maintain this relation in spite of the varying distancebetween the band of cement and the side of the shoe, which latter isheld in engagement with a feed roll capable of yielding laterally anddriven to assist the operator in presenting the entire length of theperipheral margin to be ccmented to the applying nozzle. Machines of thetype illustrated in the above-mentioned letters patent have beenoperated successfully and are in extensive use. It will be understood,however, that a substantial amount of skill is required properly topresent the shoe to the machine, partly because of the substantial massof the mechanism for yieldably supporting the feed roll. Accordingly, animportant object of the invention is to provide an improved machine inwhich the positioning of the band of cement on the work can more readilybe accomplished. To this end, the improved machine, as hereinillustrated and in accordance with features of the invention, isprovided with a feed roll engaging the side of the shoe and which isheld with its axis relatively fixed in the machine. The machine also hasa nozzle inclined downwardly toward the overlasted margin of the upperand forwardly with respect to the direction of movement of the shoe andthis nozzle is swingably mounted about an ofiset upright axis so thatthe Work-engaging end of the nozzle may be easily moved in and out withrespect to the feed roll, thereby taking care of the changing spacerelation which exists, for example, between the band of cement and theside of the shoe at the toe end of the shoe and at the shank portionthereof. Another feature of the invention resides in an improvedoperator-controlled [8 which is fastened to a frame 20.

mechanism for swinging the nozzle. This mechanism, as illustrated, iscombined with the treadle-controlled valve by means of which the iiow ofcement to the nozzle is shut off when desired.

The difficulty of positioning the stripe of cement upon the overlastedmargin is considerably increased when the shoe design is such that thereare thicker portions, such as superposed straps, toe caps, or the like,upon the outside of the upper. To still further facilitate the controlof the swinging movement of the nozzle and in accordance with anotherfeature of the invention, a guide finger has been provided which isconstructed and arranged to cooperate with a characteristic feature ofthe shoe which is independent'of its peripheral contour. This may be aspecially provided channel in the insole which is substantially parallelto the periphery thereof.

These and other features of the invention will best be understood from aconsideration of the following description taken in connection with theaccompanying drawings, in which Fig. 1 is a side elevation of the upperpart of the machine with the cover removed and showing a portion of ashoe in position for treatment;

Fig. 2 is an angular View upon a larger scale of the swinging mountingof the nozzle and showing the guide finger which may be associated withthe nozzle;

Figs. 3 and 4 are sections taken transversely through the forepart andthe shank portions respectively of a shoe and showing the relation ofthe nozzle and the feed Wheel to the work at these positions; and

Fig. 5 is a view similar to Fig. 1 but without any shoe, and with theparts in idle position.

As in the patented machine, a feed roll l0 engages the side of aninverted shoe S and a nozzle [2 cooperates with the overlasted margin Mon the bottom of the shoe. In my improved machine the feed roll I 0,which is positively rotated by a shaft i6 connected to the feed rollthrough bevel gears, is journaled in a block The feed roll, therefore,serves as a guide or abutment against which the side of the shoe may bepressed as successive portions of the overlasted margin are presented tothe nozzle. The nozzle, which is of the type shown in Letters Patent ofthe United States No, 2,177,666, granted October 31, 1939, upon myapplication, comprises a plurality of delivery members 22 (Fig. 2), eachof which is pivotally mounted on a pin 23 in a block 24,

'1 V and they extend downwardly and forwardly with respect tothedirection of movement of the shoe,

'as indicated by an arrow inFig. 2. These delivery members are providedat their work-contacting lower ends with outlet openings which aresupplied with cement through individual tubes 28 connecting with apassage (not shown) in the block 24. ifhe delivery members 22 are heldin firm'engagement with the work by indi vidual springs 28, andprotective covers 30 and 32 are provided to prevent damage to the ma--chine by accidental contact with the springs and tubes. 7

For good shoemaking, as is well understood in the trade, it is essentialthat the stripe of cement which is applied to the overlasted margin" I4shall extend as far out as possible without being exposed to view in thecompletedshoe and hence to the feather line of the insole. ,As is in:-;dicated in Figs. 3 and 4, the relation between this outer limit and thefeedroll differs radically between the forepart and the shank portionsof the s hoe. Accordingly, the nozzle block 24 is pivotal- 1 y mountedfor swinging movement about an upright axis in a bracket 35 (Fig. 2)which is, as in the patented machine, clamped to a rod 36 held by a setscrew 38 (Fig. 1) in an arm 4B; This arm; having a, depending inner end,is upwardly tiltable for a short distance about a pivot l 42 against thetension of a spring Mi as the operator presents the Work to the nozzle.Cement is supplied to thenczzle, under a pressure indicated bya gage 46,through a flexible metallic hose 48by means or" a pump (not shown) andisdelivered Lfrom this hose to the nozzle through a T -co nncction 5i) anda hollow nozzle stem 5?. which is rigidly connected to the nozzle block25. The upper and lower portions of this stem form pivot members toenable the swinging movement of the'nozzle andhavebearings' in'thebracket 35, Where they are held by removable bearing caps 56. Thebracket 3a is cut away to provide space for angular movem'ent ofanenlarged portion 88' of the stem 52in which a rotatable Valve member62:18 fitted. This valve 62 may be turned by a redid connected to it bya universal joint 68, one

portion of which is formed in the end of the rod-and is notched toengage a pin 'II in the valve. The other end of the .rod'fifi isconnected by another universal joint 89 to a rod extension 55 journaledin a bracket attached to the frame 20. A compression spring 16 isemployed to hold the outer notched end Inf the rod 64 in engagement withthe pin 1! in the valve member 62 The opening and closing of the valve60 is ef- *to'a two-arm lever 82 pivoted to theframe at 64 and having afork engaging a pin 83 on a block "56 :between said arms and which isslidable on the rod .12. Downward movement of the treadle rod I2 istransmitted to the blockthrough a compression spring 90. In Fig. 1,these part'sfiare shown'in the open position of the valve and, when'the"treadle is released, they are 'returne'dto a position in which thevalve is closed (Fig. 5) by inea ns ef a'spring 92, thislatter'pos'ition being determined by the engagement of the arm I8 withthe lower end of a stop screw 94. The spring 92 extends between theframe and one arm of the lever 82 and is not as strong as the spring 90.The latter, when fully expanded, is not as long as the distance betweenthe head I3, as raised by the treadle spring, and the block 86, asraised by the spring 92.

The same treadle rod 72 is also used to swing the nozzle block 24 aboutits upright axis, thus causing the trailing end of the nozzle to'bemoved from side to side, as indicated in Figs. 3 and 4..

To this end, the treadle rod and its bell crank 14 are connected to anactuating rod lei), which has a ballaand-socket joint I02 connecting itto an arm It l extending forwardly, with respect to of the rod IIHl forswinging the nozzle is not suf-, fi'cient to cause the valveto be closedwhen in operation upon the shoe bottom. Little effort is required toswing the trailing end of the'nozzle which is mounted to follow thedesired path, much as a caster wheel follows the article to which it isattached. Because of this fact there is no tendency to push the .workaway from the roll It by reason of the friction between the nozzle andthe work, as would often happen were the. nozzle slidably rather thanswingably mounted. In the down position of the treadle rod a tail 93 onthe lever 82 engages a stop 95 fixed upon the frame and here shown asbeing a part of the block I8. After the lever 82 has reached a postionin which the valve is fully opened so that the tail 93 contacts the stop95, th'en'further slight downward movement of the treadle rod, whichwill compress the spring still more, may be had, if necessary, to drawthe r'o'd I00 to the right until the left collar I Iii engages the stopII2. If, on the other hand, it is 'desi'redTto move the nozzle I2 awayfrom the feed wheel I6, then the spring 9d will expand and, overcomingthe spring 92, keep the valve closed while permitting the operator toswing the noz zle. It "will be understood that when the treadle isreleased and the rod is moved upwardly till the arm 18 contacts the stop94, the head 73 will leave the spring 98, the nozzle will be pushed awayfrom the feed wheel, and the valve will be closed. V I

k In case the shoe is of the type in which the up- {per is formed of, oris provided with, straps' I20,

the caps I22 or other portions which form bumps 'jupon the bottom oftheshoe and on the side thereof as well, then it may be founddesirable-toprdvidethe insole I with a special channel '0 which shall besubstantially parallel to the pe- 'riphery of the insole and into which'may be inserted theend of-a rigid guide finger I24 fastened to the sideof the nozzleblock 24.. With an arrangement of this sort, the relationof the nozzle to the "feather line of the overlasted upper maybe'n'iore' positively determined and the finger I24 may be held in thechannel by the action of one ofithe'springs I08 which will be energizedwhen the treadle rod 12 is depressed, as shown in Fig. 1-.

H In the'useof-themachinaan inverted shoewill be presented to thenozzle, raising the ends of the delivery fingers 22 somewhat to insurefirm contact with the overlasted margin M of the upper, and the side ofthe shoe will be brought into engagement with the guide or abutmentprovided by the feed roll Ill. The operator will then, starting at apoint near the heel breast line at one side of the shoe bottom, causethe nozzle to traverse the margin of the shoe bottom to apply a uniformstripe of cement the position of which will be determined by swingingthe work-contact ing end of the nozzle from side to side under thecontrol of the operator as he cause the treadle to compress one or theother of the springs N38. The mass of the movable nozzle is small, andthe position of its trailing end may be readily controlled. At thebeginning of the operation, the valve 65 will be opened as the treadlerod is depressed, and at its completion it will be closed again byupward movement thereof under the impulse provided by the return spring92, and the treadle rod raised by a usual treadle spring.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a machine for applying cement to the overlasted upper upon thebottom of a shoe, a guide against which the side of an inverted shoe maybe pressed as it is presented to the machine, a depending nozzle forapplying cement to said overlasted margin of the upper, said nozzlebeing inclined downwardly and forwardly with respect to the direction ofmovement of the shoe, and means for supporting said nozzle for pivotalmovement about an upright axis offset to the rear of the work-engagingend of the nozzle.

2. In a machine for applying cement to the overlasted upper upon thebottom of a shoe, a feed roll positioned to engage the side of aninverted shoe, a nozzle inclined downwardly and forwardly with respectto the direction of movement of the shoe and arranged to apply cement tosaid upper, an upright pivotal support for said nozzle, and operatorcontrolled means for swinging said nozzle around said support.

3. In a machine for applying cement to the margin of the overlastedupper upon the bottom of a shoe, a roll engaging the side of an invertedshoe, a depending nozzle for coating said margin and pivotally mountedfor lateral movement to vary the horizontal relation between theworkcontacting end of the nozzle and said roll, and operator-controlledmeans for swinging said nozzle.

4. In a shoe-bottom-cementing machine, a nozzle for applying cement tothe overlasted margin of the upper of an inverted shoe, a feed rollpositioned to engage the side of a shoe presented to said nozzle,pivotal supporting means for said nozzle permitting the work-engagingend thereof to be moved horizontally with respect to said feed roll, avalve for controlling the delivery of cement to the nozzle, andoperator-controlled means for opening said valve and for swinging saidnozzle.

5. In a shoe-bottom-cementing machine, a depending nozzle for applyingcement to the overlasted margin of the upper upon the bottom of aninverted shoe, shoe-feeding means, an upright pivotal support for thenozzle displaced horizontally from the work-contacting end thereof,operator-controlled means connected by springs to said nozzle to swingit about its support thereby to vary the relation of the end of thenozzle to the feeding means.

6. A machine as in claim 5, having a stop to limit the movement of thenozzle by said treadle connection.

7. In a shoe-bottom-cementing machine, a nozzle for applying cement tothe overlasted margin of the upper upon the bottom of a shoe presentedto said nozzle in inverted position, said nozzle being inclinedforwardly and downwardly with respect to the direction of movement ofthe shoe as it is presented, a movable support for the nozzle, a valvecontrolling the flow of cement to the nozzle, a treadle rod, a resilientconnection between said rod and said valve, and another resilientconnection between the rod and the nozzle for moving the same back andforth.

8. In a shoe-bottom-cementing machine, a nozzle for applying cement tothe overlasted margin of the upper upon the bottom of a shoe presentedto said nozzle in inverted position, pivotal supporting means for saidnozzle, a valve controlling the flow of cement to the nozzle, a treadlerod, a resilient connection between said rod and said valve, and anotherresilient connection of greater strength than said first-mentionedconnection interposed between the rod and the nozzle for swinging thesame back and forth without affecting the valve.

9. In a shoe-bottom-cementing machine, a nozzle for applying cement tothe overlasted margin upon the bottom of a shoe, a guide engaging theside of the shoe, a movable support for said nozzle permitting variationwidthwise of the shoe of the relation of the work-engaging end thereofto said lateral guide, and means movable with the nozzle constructed andarranged to engage a characteristic feature of the shoe to assist inguiding the nozzle along the upper.

10. In a shoe-bottom-cementing machine for shoes having uppers someparts of which project beyond the normal surface of the upper, a feedwheel engaging the side of the shoe as it is held in an invertedposition, a movably supported nozzle for applying cement to theoverlasted margin of the upper, and a guide finger on said nozzleconstructed and arranged to engage a characteristic feature of the shoewhich parallels said margin and is unaffected by changes in thickness ofthe upper.

11. In a shoe-bottom-cementing machine adapted to coat the overlastedmargin upon inverted shoes having an insole channel paralleling theoutline of the bottom of the shoe, a laterally movable depending nozzlefor applying cement to said overlasted margin, and a finger on saidnozzle engaging said channel.

12. In a shoe-bottom-cementing machine, an abutment for engagement withthe side of a shoe presented to the machine, said shoe being providedwith an insole having a' groove parallel to its periphery, a nozzlemounted for movement with respect to said abutment for applying cementto the overlasted margin of the shoe, a finger on said nozzle adapted tobe positioned in said groove, a spring connected to said movable nozzle,and operator-controlled means also con-' nected to said spring andmovable to energize it to cause it to urge said nozzle toward saidabutment thereby tending to hold said finger in said groove.

WILBUR L. MACKENZIE.

